Factor | Level | N | Prevalence | CL95 | OR | z | P |
---|---|---|---|---|---|---|---|
Sex | Male | 985 | 14.6 | 11.76–17.96 | 1 |  |  |
Female | 669 | 15.2 | 12.85–17.96 | 1.051 | 0.352 | 0.375 | |
 |  | (χ21 = 0.12, P = 0.730) |  |  |  |  | |
Area | Urban | 949 | 12.5 | 9.94–15.6 | 1 |  |  |
 | Rural | 705 | 18 | 15.33–21.02 | 1.533 | 3.08 | 0.00 |
 |  | (χ21 = 9.48, P = 0.002) |  |  | |||
Water | Bottled | 827 | 13.1 | 10.60–15.97 | 1 |  |  |
 | Tap | 827 | 16.7 | 13.91–19.86 | 1.333 | 2.069 | 0.047 |
 |  | (χ21 = 4.31, P = 0.038) |  |  | |||
Animal | No | 1305 | 10.4 | 8.76–12.08 | 1 |  |  |
Yes | 349 | 31.5 | 26.46–37.03 | 3.956 | 9.383 | < 0.0001 | |
 | (χ21 = 83.65, P < 0.001) |  |  | ||||
Season | Spring | 497 | 14.7 | 10.33–20.28 | 1.115 | 0.522 | 0.348 |
Summer | 368 | 16.3 | 12.36–21.08 | 1.262 | 1.067 | 0.226 | |
Autumn | 475 | 14.9 | 10.68–20.43 | 1.138 | 0.617 | 0.33 | |
Winter | 314 | 13.4 | 10.09–17.50 | 1 |  |  | |
 |  | (χ23 = 1.17, P = 0.76) |  |  |  | ||
Year | 2015 | 345 | 13.3 | 9.91–17.67 | 1 |  |  |
2016 | 590 | 14.2 | 12.03–16.73 | 1.079 | 0.385 | 0.37 | |
2017 | 393 | 17.3 | 13.08–22.42 | 1.36 | 1.485 | 0.132 | |
2018 | 326 | 14.7 | 11.21–19.04 | 1.122 | 0.519 | 0.349 | |
 | (χ23 = 2.62, P = 0.45) |  |  |  |